glsl: Add clean-local rule to delete glcpp test output.

diff --git a/src/glsl/Makefile.am b/src/glsl/Makefile.am
index b51621d..c3fe5f6 100644 (file)
--- a/src/glsl/Makefile.am
+++ b/src/glsl/Makefile.am
@@ -208,3 +208,6 @@ CLEANFILES =                                                \
        glcpp/glcpp-parse.h                             \
        glsl_parser.h                                   \
        $(BUILT_SOURCES)
+
+clean-local:
+       $(RM) -r subtest-cr subtest-cr-lf subtest-lf subtest-lf-cr